public virtual IVgXmlContentFactory GetFactoryInstance()
{
if (ContentFactory == null)
{
return(null);
}
if (!ContentFactory.GetInterfaces().Any(i => i == typeof(IVgXmlContentFactory)))
{
throw new InvalidOperationException($"{nameof(ContentFactory)} must be type that implements {nameof(IVgXmlContentFactory)}.");
}
var constructor = ContentFactory.GetConstructor(System.Type.EmptyTypes) ??
throw new InvalidOperationException($"{nameof(ContentFactory)} must have default constructor.");
return(constructor.Invoke(new object[] { }) as IVgXmlContentFactory);
}